[gpfsug-discuss] GPFS RFE promotion

Thu Oct 23 19:59:52 BST 2014

Looks like IBM decides if the RFE is public or private:

Q: What are private requests?
A: Private requests are requests that can be viewed only by IBM, the request author, members of a group with the request in its watchlist, and users with the request in their watchlist. Only the author of the request can add a private request to their watchlist or a group watchlist. Private requests appear in various public views, such as Top 20 watched or Planned requests; however, only limited information about the request will be displayed.
IBM determines the default request visibility of a request, either public or private, and IBM may change the request visibility at any time. If you are watching a request and have subscribed to email notifications, you will be notified if the visibility of the request changes.

I'm submitting a request to make the RFE public so that others may vote on it now,
-Bryan

From: gpfsug-discuss-bounces at gpfsug.org [mailto:gpfsug-discuss-bounces at gpfsug.org] On Behalf Of Jez Tucker (Chair)
Sent: Thursday, October 23, 2014 1:52 PM
To: gpfsug-discuss at gpfsug.org
Subject: Re: [gpfsug-discuss] GPFS RFE promotion

Hi Bryan

  Unsure, to be honest.  When I added all the GPFS UG RFEs in, I didn't see an option to make the RFE private.
There's private fields, but not a 'make this RFE private' checkbox or such.

This one may be better directed to the GPFS developer forum / redo the RFE.

RE: GPFS UG RFEs, GPFS devs will be updating those imminently and we'll be feeding info back to the group.

Jez
On 23/10/14 19:35, Bryan Banister wrote:
I reviewed my RFE request again and notice that it has been marked as "Private" and I think this is preventing people from voting on this RFE.  I have talked to others that would like to vote for this RFE.

How can I set the RFE to public so that others may vote on it?

Thanks!
-Bryan

From: gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org> [mailto:gpfsug-discuss-bounces at gpfsug.org] On Behalf Of Bryan Banister
Sent: Friday, October 10, 2014 12:13 PM
To: gpfsug main discussion list
Subject: Re: [gpfsug-discuss] GPFS RFE promotion

A DMAPI daemon solution puts a dependency on the DMAPI daemon for the file system to be mounted.  I think it would be better to have something like what I requested in the RFE that would hopefully not have this dependency, and would be optional/configurable.  I'm sure we would all prefer something that is supported directly by IBM (hence the RFE!)

Thanks,
-Bryan

Ps. Hajo said that he couldn't access the RFE to vote on it:

I would like to support the RFE but i get:

"You cannot access this page because you do not have the proper authority."
Cheers
Hajo

Here is what the RFE website states:
Bookmarkable URL:http://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=60458
A unique URL that you can bookmark and share with others.

From: gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org> [mailto:gpfsug-discuss-bounces at gpfsug.org] On Behalf Of Sven Oehme
Sent: Friday, October 10, 2014 11:52 AM
To: gpfsug main discussion list
Subject: Re: [gpfsug-discuss] GPFS RFE promotion

The only DMAPI agent i am aware of is a prototype that was written by tridge in 2008 to demonstrate a file based HSM system for GPFS.

its a working prototype, at least it worked in 2008 :-)

you can get the source code from git :

http://git.samba.org/rsync.git/?p=tridge/hacksm.git;a=summary

just to be clear, there is no Support for this code. we obviously Support the DMAPI interface , but the code that exposes the API is nothing we provide Support for.

thx. Sven

On Fri, Oct 10, 2014 at 9:15 AM, Bryan Banister <bbanister at jumptrading.com<mailto:bbanister at jumptrading.com>> wrote:
I agree with Ben, I think.

I don't want to use the ILM policy engine as that puts a direct workload against the metadata storage and server resources.  We need something out-of-band, out of the file system operational path.

Is there a simple DMAPI daemon that would log the file system namespace changes that we could use?

If so are there any limitations?

And is it possible to set this up in an HA environment?

Thanks!
-Bryan

From: gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org> [mailto:gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org>] On Behalf Of Ben De Luca
Sent: Friday, October 10, 2014 11:10 AM

To: gpfsug main discussion list
Subject: Re: [gpfsug-discuss] GPFS RFE promotion

querying this through the policy engine is far to late to do any thing useful with it

On Fri, Oct 10, 2014 at 11:51 PM, Sven Oehme <oehmes at gmail.com<mailto:oehmes at gmail.com>> wrote:
Ben,

to get lists of 'Hot Files' turn File Heat on , some discussion about it is here : https://www.ibm.com/developerworks/community/forums/html/topic?id=77777777-0000-0000-0000-000014920653

thx.  Sven

On Fri, Oct 10, 2014 at 8:26 AM, Ben De Luca <bdeluca at gmail.com<mailto:bdeluca at gmail.com>> wrote:
Id like this to see hot files

On Fri, Oct 10, 2014 at 11:08 PM, Bryan Banister <bbanister at jumptrading.com<mailto:bbanister at jumptrading.com>> wrote:
Hmm... I didn't think to use the DMAPI interface.  That could be a nice option.  Has anybody done this already and are there any examples we could look at?

Thanks!
-Bryan

-----Original Message-----
From: gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org> [mailto:gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org>] On Behalf Of Phil Pishioneri
Sent: Friday, October 10, 2014 10:04 AM
To: gpfsug main discussion list
Subject: Re: [gpfsug-discuss] GPFS RFE promotion

On 10/9/14 3:31 PM, Bryan Banister wrote:
>
> Just wanted to pass my GPFS RFE along:
>
> http://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=6
> 0458
>
>
> *Description*:
>
> GPFS File System Manager should provide the option to log all file and
> directory operations that occur in a file system, preferably stored in
> a TSD (Time Series Database) that could be quickly queried through an
> API interface and command line tools.  ...
>

The rudimentaries for this already exist via the DMAPI interface in GPFS (used by the TSM HSM product). A while ago this was posted to the IBM GPFS DeveloperWorks forum:

On 1/3/11 10:27 AM, dWForums wrote:
> Author:
> AlokK.Dhir
>
> Message:
> We have a proof of concept which uses DMAPI to listens to and passively logs filesystem changes with a non blocking listener.  This log can be used to generate backup sets etc.  Unfortunately, a bug in the current DMAPI keeps this approach from working in the case of certain events.  I am told 3.4.0.3 may contain a fix.  We will gladly share the code once it is working.

-Phil
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